Flashcards
Oxyurids, Spirurids, and Trichinella spiralis
Flashcards do conjunto (7)
- 1Oxyuris equi Course in body Definitive Host Life Cycle Clinical Signs Diagnosis Treatment Zoonotic?Large Equine Pinworm
Through full GI tract to anus
Horse
Direct cycle: Eggs deposited in perianal region, eggs embryonate, fall into bedding/feed/water, eggs ingested and hatch in small intestine, enter crypts of cecum/ventral colon, enter lumen and move to dorsal colon to develop to adults
Clinical signs: larvae cause localized tissue reactions, pruritis ani, alopecia, hyperkeratosis, secondary bacterial infection, restlessness, anorexia
Diagnosis: Eggs at perineum or in feces, history/signs
Treatment: Anthelmintics, prevent fecal contaminations, regular washing of perianal skin and under tail.
Not zoonotic - 2—Oxyuris equi
- 3—Oxyuris equi
- 4Habronema/Draschia megastoma Distribution Course in body Definitive Host Life Cycle Clinical Signs Diagnosis Treatment Zoonotic?Stomach worms
Worldwide
Stomach
Horses
Indirect Cycle: Eggs produced in the stomach hatch in the intestine, larvae emerge and eaten by maggots-L1-L2-L3, escape when fly feeds or stay in fly in water (if around mouth, both cases lead to adults in stomach, can also wind up in skin, lungs, or eyes via wounds.
Clinical signs: (rarely) chronic gastritis with ulcerations, pulmonary granulomas, summer sores, granular dermatitis
Diagnosis: Eggs/larvae in feces, gastric lavage
Treatment: Ivermectin/moxidectin, cryotherapy, corticosteroids, fly control, compost manure - 5Physaloptera spp. Course in body Definitive Host Life Cycle Clinical Signs Diagnosis Treatment Zoonotic?Stomach worms
US and Canada
Stomach
Dogs and Cats
Indirect cycle: Egg with L1 in feces, ingested by insect-L2-L3-encysted, eaten by paratenic host or directly by definitive host, hatch and mature in stomach
Clinical signs: vomiting
Diagnosis: Fecal float, endoscopy
Treatment: Ivermectin, fenbendazole, pyrantel pamoate, prevent predation - 6—Physaloptera spp.
- 7Trichinella spiralis Distribution Course in body Definitive Host Life Cycle Clinical Signs Diagnosis Treatment Zoonotic?Worldwide
Stomach to striated muscle to small intestine
Mammals
Indirect Cycle: Larvae deposited in intestinal wall, enter lymphatics, thoracic duct, heart, lungs, heart, systemic circulation, encyst in striated muscle, intermediate host eaten, larvae emerge in small intestine and mature.
Clinical signs: Decreased gain, intense muscle pain, nonspecific enteritis, diarrhea, abdominal pain, fever, myositis, circumorbital edema
Diagnosis: Symptoms, ELISA, intradermal test, muscle biopsy
Treatment: (humans) pred, ivermectin, thiabendazole, mebendazole, albendazole, analgesics, cook meat
Zoonotic
Informações
- Descrição
- Veterinary Medicine FlashCards sobre Oxyurids, Spirurids, and Trichinella spiralis, criado por Cassie Bowling em 27-11-2018.
- Criado por
- Cassie Bowling
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